A lot depends on how much of a game changer 5G might be
But in the long term perhaps some sort of paying for how you watch OTT services might come into play. This could be driven either by the OTT services themselves, or by the network. From the network end, I've seen this on visits to Africa already. Consider Zimbabwe:
- I can buy a prepaid SIM card on arrival at Harare Airport, load this with some money, and buy a data package (typically USD 30 for 1Gb for one month - data is generally expensive in Africa).
- This is all well and good, but what cash strapped locals do is buy a smaller allowance, and then buy packages of unlimited services they want (typically unlimited WhatsApp, which is big in Africal, but also Facebook, Twitter).
In the longer term, I can see this trend happening with OTT services. Of course, if 5G radio brings us sufficiently close to wired, we might also see networks deciding they don't have to invest in a lot of expensive equipment for data metering, content billing and so on. I think the latter possibility is rather unlikely.